Updated fields: d9, g3, g6, h2, h3, h6, h10 laparotomy sponge was returned for evaluation.Dhr review: dup1213 with lot#4102920 was produced during (b)(6) 2021.The production process was under control without change on equipment, environment, material and product configuration, no abnormity was found during start-up verification.Failure analysis: the dirt that is on the sponge is the oil from the folding/pressing machine where there is oil leaking around the hydraulic cylinder.A retain sample of this complained lot was reviewed, the appearance was good without abnormity/dirt in sponge.Root cause: based on the analysis, the root cause is due to the sealing ring of the hydraulic cylinder worn out which caused oil leaking around the cylinder area.During the folding and pressing process of the lap sponge, the lap sponge had contacted the cylinder and contaminated with oil.A corrective action was implemented.
|